Lenovo T510 i5 with 6month warranty (20unit), also can upgrade SSD 120GB/240GB/480GB and add on RAM DDR3/3L/4 - 4GB, Computers & Tech, Laptops & Notebooks on Carousell
A-Tech 8GB (2 x 4GB) RAM for Lenovo THINKPAD T510 4384-XXX | DDR3 1333MHz SODIMM PC3-10600 204-Pin Non-ECC Memory Upgrade Kit at Amazon.com
How To Upgrade the Ram in a Lenovo ThinkPad - YouTube